There are 19 words that start with 'sera'.
| sera | serac | serai | 
| seral | seracs | serail | 
| serais | serape | seraph | 
| serails | serapes | seraphs | 
| seraglio | seraphic | seraphim | 
| seraphin | seraglios | seraphims | 
| seraphically | ||
Note: These 19 words that start with 'sera' are found from the USA & Canada version of the tournament Scrabble word list.